Stone portrays legendary tennis star Billie Jean King in the upcoming movie Battle of the Sexes. "Playing Billie Jean was a bit of a game changer," she tellsMarie Claire. She also gained 15 pounds of muscle for the role. Fifteen. Pounds.

Will Smith in his prime. Smith played Muhammad Ali in the 2001 film—wait for it—Ali.

Muhammad Ali

Will Smith in his prime. Smith played Muhammad Ali in the 2001 film—wait for it—Ali.

Photo: Getty Images

Image 5 of 63

Image 6 of 63

Selma Blair as...

Selma Blair as...

Photo: Getty Images

Image 7 of 63

Kris Jenner

Blair played Jenner as her pre-Keeping Up with the Kardashians self in The People v. O. J. Simpson: American Crime Story.

Kris Jenner

Blair played Jenner as her pre-Keeping Up with the Kardashians self in The People v. O. J. Simpson: American Crime Story.

Photo: Getty Images

Image 8 of 63

James Franco as...

James Franco as...

Photo: Getty Images

Image 9 of 63

Aron Ralston

Franco played daredevil Aron Ralston in the 2010 thriller 127 Hours, which tells the story of how Ralston was trapped in a canyon after a boulder fell on his arm.

Aron Ralston

Franco played daredevil Aron Ralston in the 2010 thriller 127 Hours, which tells the story of how Ralston was trapped in a canyon after a boulder fell on his arm.

Photo: Getty Images

Image 10 of 63

Image 11 of 63

Jennifer Lawrence as...

Jennifer Lawrence as...

Photo: Getty Images

Image 12 of 63

Joy Mangano

They could be related, right? On the right is Joy Mangano, inventor of the Miracle Mop, whose story is featured in the 2015 film Joy.

Joy Mangano

They could be related, right? On the right is Joy Mangano, inventor of the Miracle Mop, whose story is featured in the 2015 film Joy.

Photo: Getty Images

Image 13 of 63

Natalie Portman as...

Natalie Portman as...

Photo: Getty Images

Image 14 of 63

Jackie Kennedy

Portman played Jackie in the 2016 film of the same name, which recounts Jackie's life after her husband's assassination.

Jackie Kennedy

Portman played Jackie in the 2016 film of the same name, which recounts Jackie's life after her husband's assassination.

Photo: Getty Images

Image 15 of 63

Image 16 of 63

Sandra Bullock as...

Sandra Bullock as...

Photo: Getty Images

Image 17 of 63

Leigh Anne Tuohy

Michael Oher, the homeless teen and star of the 2009 film The Blind Side, admits the movie has negatively affected his football career. On the other hand, Bullock totally nails the role of his real-life adoptive mother Leigh Anne Tuohy.

Dorothy Vaughn was NASA's first African-American manager. Vaughn is one of the three main women in the 2017 film Hidden Figures, in which she was played by award-winning actress Octavia Spencer.

Dorothy Vaughn

Dorothy Vaughn was NASA's first African-American manager. Vaughn is one of the three main women in the 2017 film Hidden Figures, in which she was played by award-winning actress Octavia Spencer.

Photo: Getty Images

Image 28 of 63

Janelle Monáe as...

Janelle Monáe as...

Photo: Getty Images

Image 29 of 63

Mary Jackson

Jackson's the third women in Hidden Figures known for her impeccable engineering skills at NASA. Monáe says she was "honored" to play the role of Jackson.

Mary Jackson

Jackson's the third women in Hidden Figures known for her impeccable engineering skills at NASA. Monáe says she was "honored" to play the role of Jackson.

Photo: Getty Images

Image 30 of 63

Image 31 of 63

Charlize Theron as...

Charlize Theron as...

Photo: Getty Images

Image 32 of 63

Aileen Wuornos

Theron plays serial killer prostitute Aileen Wuornos in the 2003 biographical drama film Monster. Wuornos was executed in Florida in 2002 after killing six men.

Aileen Wuornos

Theron plays serial killer prostitute Aileen Wuornos in the 2003 biographical drama film Monster. Wuornos was executed in Florida in 2002 after killing six men.

Photo: Getty Images

Image 33 of 63

Ashton Kutcher as...

Ashton Kutcher as...

Photo: Getty Images

Image 34 of 63

Steve Jobs

Kutcher is the ultimate doppelgänger portraying former Apple CEO Steve Jobs in the 2013 film Jobs.

Steve Jobs

Kutcher is the ultimate doppelgänger portraying former Apple CEO Steve Jobs in the 2013 film Jobs.

Photo: Getty Images

Image 35 of 63

Image 36 of 63

Dev Patel as...

Dev Patel as...

Photo: Getty Images

Image 37 of 63

Saroo Brierley

Based on a true story, Lion details the life of five-year-old boy Saroo Brierley, who falls asleep on a train and loses his family. Patel plays Brierley and even met him IRL.

Saroo Brierley

Based on a true story, Lion details the life of five-year-old boy Saroo Brierley, who falls asleep on a train and loses his family. Patel plays Brierley and even met him IRL.

Photo: Getty Images

Image 38 of 63

Julia Roberts as...

Julia Roberts as...

Photo: Getty Images

Image 39 of 63

Elizabeth Gilbert

Julia Roberts plays Gilbert in the 2010 film Eat Pray Love

Elizabeth Gilbert

Julia Roberts plays Gilbert in the 2010 film Eat Pray Love

Photo: Getty Images

Image 40 of 63

Image 41 of 63

Jesse Eisenberg as...

Jesse Eisenberg as...

Photo: Getty Images

Image 42 of 63

Mark Zuckerberg

Eisenberg portrayed the onscreen version of Facebook cofounder and CEO Mark Zuckerberg in The Social Network, and Zuckerberg was totally not happy about how it turned out.

Mark Zuckerberg

Eisenberg portrayed the onscreen version of Facebook cofounder and CEO Mark Zuckerberg in The Social Network, and Zuckerberg was totally not happy about how it turned out.

Photo: Getty Images

Image 43 of 63

Will Smith as...

Will Smith as...

Photo: Getty Images

Image 44 of 63

Chris Gardner

We're not crying, you're crying. Will Smith played real-life single father Chris Gardner, whom Smith mirrored in 2006's The Pursuit of Happyness. Smith's real son Jaden Smith played Gardner's son in the movie.

Watts played Princess Diana in the 2013 film Diana, and she totally nailed the look.

Princess Diana

Watts played Princess Diana in the 2013 film Diana, and she totally nailed the look.

Photo: Getty Images

Image 55 of 63

Image 56 of 63

Reese Witherspoon as...

Reese Witherspoon as...

Photo: Getty Images

Image 57 of 63

Cheryl Strayed

Witherspoon played author Cheryl Strayed in the 2014 movie Wild. The film recounts Strayed's journey of self-discovery while hiking along the Pacific Crest Trail, and is based on Strayed's 2012 memoir Wild: From Lost to Found on the Pacific Crest Trail.

For example, Natalie Portman looked eerily like Jackie Kennedy in the movie "Jackie," just like Ashton Kutcher was basically Steve Jobs reincarnated in the movie "Jobs."

In many ways, "Battle of the Sexes" still carries a hopeful air.
The film shows a 29-year-old King (played by Emma Stone) battling 55-year-old Riggs (Steve Carell) in a game of tennis that symbolically was worth so much more than the $100,000 prize on the table. She was fighting to prove that women were worthy of equal pay, to showcase the mighty strength of female athletes, and stand up to someone who embodied very antiquated ideals.

Media: WochIt Media

While it's hard to find an exact celebrity match for a real person, some of these doppelgängers are pretty spot-on.

Take a look through the gallery above to see celebrities compared to their real-life counterparts.